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Information reranking aims to recover the true order of the initial search results. Traditional reranking approaches have achieved great success in uni-modal document retrieval. They, however, suffer from the following limitations when reranking multi-modal documents: (1) they are unable to...
In this paper, we propose a novel feature-space local pooling method for the commonly adopted architecture of image classification. While existing methods partition the feature space based on visual appearance to obtain pooling bins, learning more accurate space partitioning that takes semantics...
Content-based image retrieval (CBIR) is the process of searching digital images in a large database based on features, such as color, texture and shape of a given query image. As many images are compressed by transforms, constructing the feature vector directly in transform domain is a very...
In this paper, we propose studying the impact of clustering on near-duplicate video (NDV) retrieval. The aim is to reduce the search space at retrieval time through a pre-processing clustering step performed on the dataset off-line and retrieving NDVs based on the formed clusters. Our...
Combining items from social media streams, such as Flickr photos and Twitter tweets, into meaningful groups can help users contextualise and consume more effectively the torrents of information continuously being made available on the social web. This task is made challenging due to the scale of...
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